1.6 Billion
200 Million
250 Million
275 Million
3.7 Billion
375 Million
4.5 Billion
420 Million
5.2 Billion
5.8 Billion
600 Million
900 Million
Age of Revolution
Agricultural Revolution
Black Death kills 75 million
Early Middle Ages
Enlightenment
High Middle Ages
Industrial Revolution
Late Middle Ages
One Billion
Renaissance
Six Billion
The Modern World
The Reformation
Three Billion
Two and a Half Billion
Wolrd At War and Interwar Years